Wood, 25, and Bell, 26, married on October 30, 2011 in California. Shortly after the wedding, there were rumors that Wood was pregnant. Wood denied them, tweeting in November, “Sorry to disappoint! But no baby on the way here.”

Wood tweeted Friday, “Remember when i said, ‘No baby on the way here’ Well I didn’t know there actually was!” Accompanying the tweet was a photo of What To Expect When You’re Expecting.

She then thanked her fans, tweeting, “Thanks for all your warm wishes. We are very happy. I’m gonna be a mama!”

The baby’s gender and due date have yet to be announced.

The soon-to-be parents met in 2005 on the set of the video for Green Day’s “Wake Me Up When September Ends” and dated on and off before finally tying the knot. Wood had previously been engaged to Marilyn Manson, whom she dated from 2006 to 2010.